Henby coppin



H. OOPPIN.

PHOTOGRAPHIC PLATE HOLDER,

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Patented Jan. 10, 18884,

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I UNITED STATES PATENT OFFIC HENRY COPPIN, on 58 s'r. GERMANs ROAD,FOREST HILL, COUNTY OF KENT, ENGLAND.

PHOTOG RAPHlC-PLATE HOLDER.

SPECIFICATION forming part of Letters Patent No. 376,181, dated January10, 1888.

Application filed February 10, 1867. Serial No. 227,003. (No model.)Patented in England December 17. 1836, No. 16,605, and

. in'France January 6, 1887, No. 180,719.

To aZZ whom it may concern.-

7 Be itknownthat I, HENRY COPPIN, a subject of the Queen of GreatBritain, residing at No. 58 St. Germans Road, Forest Hill, Kent,England, and carrying on business at No. 39 Wood Street, in the city ofLondon, England, necktie and cravat manufacturer, have invented newanduseful Improvements in Photographic- Plate Holders, (for which I haveapplied for a patent in Great Britain, which application is numbered16,605, and bears date December 17,1886; also, for a patent in France,which 3 application is numbered 180,729, and bears date January 6,1887,) of which improvements in photographic apparatus the following isa specification.

This invention relates to plate-holders.provided with removable carriershaving two sensitized plates to each carrier.

My invention consists in the combination of such a carrier'andsensitized plates with the frame in which said carrier slides, andsliding panels which exclude the light from said sensitized plates, butare hinged to fold out of the way when desired.

To carryout my invention I make the frame a, Figures 1, 2, 3, 4, and 6,of the camera-back single, with an opening, 0, in the top, through whichto insert the carrier and plates. I furnish the two sides on their inneredges with grooved guides b, Fig. 1, which receive and hold suchcarrier. I also make grooves 0,

Figs. 2, 3, and slots cin such frame, which slots and grooves receiveand hold hinged sliding panels d, Figs. 4, 6. These panels admit orexclude the light to or from the plates, as required. The grooves c arecontinued round the inner edge of the bottom of the frame and serve tocarry such hinged sliding panels. The carrier is made to carry twoplates, and consists of a single frame,f, Figs. 1, 5, 6, of suitablesize and thickness to take two plates, instead of one only, asheretofore. This frame is provided with cross-wires 9, Figs. 1, 5, 6,and buttons h, Fig. 5, which serve to secure the plates in position.

The operator can readily change the plates in daylight by placing thetop of the back in a lighttight bag, i, Fig. 6, fitted with an elasticnoose or its equivalent, which serves to confine the mouth of the bagtightly round the frame of the plate-holder, as shown in Fig. 6, andcarefully inserting the carrier and plates therein or withdrawing themtherefrom, as required.

In the accompanying drawings, Fig. 1 is a plan view showing the frame a,guides b, and carrierf. Fig. 2 is a front end elevation show ing theaperture 6 in the top of the frame, through which the carrier f isinserted into such l'rame, and the grooves c and slots 0 therein, intowhich the sliding panels (1 are inserted. Fig. 3 is aview in frontelevation of the inner edge of one ofthe sides ofsuch frame, showinggrooved guide b, fitted or formed thereon, and grooves 0, for thesliding panels (1. Fig. 4 is a plan view showing my improvedphotographic-plate holder complete. Fig. 5 is a. plan view of myimproved double carrier. Fig. 6 illustrates the operation of changingthe carrier and plates in the daylight by placing the top of the back inthe light-tight bag and inserting or withdrawing the carrier, asrequired.

I claim- 1. In a photographic-plate holder, the combination of frame a,having slots 6 o, with a carrier for sensitized plates which slides inslot 6, and the two light-excluding panels d, which slide in slots 0' oneach side of said carrier, said panels being hinged, substantially asand for the purpose set forth.

2. In a photographic-plate holder, the combination of frame a, havingslots e c and grooves b c,with a carrier for sensitized plates whichslides in slot 6 and grooves b, and the two light-excluding panels d,which slide in slots 0 and grooves c on each side of said carrier, saidpanels being hinged, substantially as set forth.

HENRY COPPIN. Witnesses:

SHIRLEY BowDEN, 33 Southampton Buildings, HoZborn, London.

WALTER I. SKERTEN, 1T Gracechurch Street, LondomE. 0.

